6. It is the central value or average of its corresponding probability mass function. a. Mean b. Standard Deviation c. Probability d. Variance 7. “The number of friend request on my Facebook account” is an example of _______________. a. Continuous Random Variable b. Discrete Random Variable 8. This symbol is used to denotes Mean. a. μ b. σ c. σ² d. P(x)

Q: random variable x represents the number of credit cards that adults have along with the…

A: Let X be the random variable having probability mass function is, XP(X) 00.0710.6820.2130.0340.01

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A: The given information is:The number of trials is The success of probability

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A:

Q: The discrete random variable x has the probability distribution given by: 2 3 5 10 P(X = x) 0.2 0.1…

A:

Q: Which of the distributions shown has the smallest standard deviation? e: O The green curve, because…

A: Given : There is given 3 curve in a diagram which is shown by red , green and black color

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A: According to the given information, we have x 0 1 2 3 4 P(x) 317 517 617 217 117

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A: Disclaimer: “Since you have posted a question with multiple sub-parts, we will solve first three…

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A:

Q: Groups of adults are randomly selected and arranged in groups of three. The random variable x is the…

A: We have given the following probability distribution table x P(x) 0 0.358 1 0.448 2 0.168…

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A: XP(X)220.16230.2240.2325?260.18

Q: It denotes the mean or the measure of central location of a probability distribution. O a P(x) O b.p…

A: 1)The mean is group of individuals in a sample is taken for studyIt is the measure of central…

Q: 1.Write out and draw the marginal probability distribution of X. Show your work. 2. Find the mean…

A: Y=1 Y=2 Total X=1 0.20 0.10 0.30 X=2 0.40 0.30 0.70 Total 0.60 0.40 1

Q: y 0123456 P(Y = y) 0.052 0.154 0.232 0.240 0.174 0.105 0.043 . Find the mean of the random variable…

A: According to Bartleby guildlines we have to solve first three subparts and rest can be rep Y 0 1…

Q: please ask a and

A: a)PX is even∪X≥7=PX=2+PX=4+PX=6=f2+f4+f6=0.25+0.1+0.1=0.45   Therefore, the probability that X is…

Q: Thestandard deviation of a probability distribution must be: A.anonnegative number B.anumber between…

A: The formula of standard deviation iss=Variance=∑x-x2n-1 Therefore, the value of standard deviation…

Q: X P(x) 0 0.32 1 0.31 2 0.20 3 0.17 a) Find the mean of the probability distribution above. b) Find…

A: Given that  Probability distribution.  X 0 1 2 3 P(x) 0.32 0.31 0.20 0.17

Q: Suppose that the average price for a gallon of gasoline in the United States is $3.75 and in Russia…

A: For United Statesmean()=3.75standard deviation()=0.25For RussiaMean()=3.38standard deviation()=0.20

Q: You have a Normal distribution with Mean = 54 and Standard Deviation = 7. Label the axis for this…

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Q: Final answer is an integer. Type in digits only. No words and/or letters allowed. 1. Suppose that X…

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Q: 1. A binomial distribution is the probability distribution of the type of probability experiment…

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A: It is given that the probability for the values 1, 2, 3, are 0.3, 0.2 and 0.1 respectively.

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A: Given information- Population mean, m = 50 Standard deviation, s = 7 Let, X be the random variable…

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A: See the below answer

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A: 16) In this case, we need to identify a suitable answer for the given statement.

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A: Given Information: Mean μ=56 Standard deviation σ=5

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A: Given data is x P(x) 0 0.07 1 0.68 2 0.21 3 0.03 4 0.01

Q: The random variable X represents the number of tests that a patient entering a hospital has. Find…

A: The question is about discrete prob. dist. Given :

Q: ation standard deviation   b. the standard deviation of the distribution of s

A: Expected value is defined as the weighted average of the values in the range.

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A: Requirements necessary for a normal probability distribution to be a standard normal probability…

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A: In this case, we need to identify the correct option for the given statement.

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Q: Test B. Directions: Complete the table below by supplying the missing entries Item No. Description…

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A: Let X denotes the weight (in grams) of a package. Given that μ=454 and σ=20. A box contains 100…

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Q: Assume that females have pulse rates that are normally distributed with a mean of u= 73.0 beats per…

A: Solution: Let X be the pulse rate of females. From the given information, X follows normal…

Q: An elevator has a placard stating that the maximum capacity is 3800 lb-26 passengers. So, 26 adult…

A: From given data we have : mean μ=189 Standard deviation σ=36